I would look up the pill to see if it interacts with your birth control.

However according to the information I don't think it'd work.

Quote:One type of emergency contraception (Plan B One-Step, Next
Choice, Levonorgestrel Tablets) is made of one of the hormones made by a
woman's body — progestin. Another type (ella) blocks the body's own
progestin.

Both types of emergency contraception work by keeping a woman's ovaries from releasing eggs — ovulation. Pregnancy cannot happen if there is no egg to join with sperm.

You might have also heard that the morning-after pill causes an abortion. But that's not true. The morning-after pill is not the abortion pill. Emergency contraception is birth control, not abortion.

Considering delivered the sperm and then you started your period the most likely situation is that if the egg is fertilized, it'll be flushed out with your cycle.

Ps. Tell him not to do that again.

Member of the Cult of Reason

The atheist is a man who destroys the imaginary things which afflict the human race, and so leads men back to nature, to experience and to reason.
-Baron d'Holbach-

Oh, and even if he wiped he still has sperm living in his urinary tract, typically until he urinates to clear it out. Also, even if he wipes the seminal fluid off his penis that doesn't mean that there aren't still sperm alive on his skin, and the moisture inside your vagina will help those little bastards swim. Let him know so he doesn't do anything like that again.

Even with all of these factors, odds are really slim that you are pregnant.